Merlin: (Using the Crystal Cave to send Arthur a message) Arthur, I'm sorry I had to leave you. I didn't want to. I hope one day you'll understand why. Your plan is a good one. And you may yet save this kingdom. But you must beware. Your army's flank is vulnerable. There's an old path over the ridge at Camlann. Morgana knows of it. She means to trap you, Arthur. Find the path, or the battle will be over before it's begun. Find the path!